Choker knob



April 1941- w. w. WEATHERFORD 2.237.618

CJI'IOKFR KNOB Filed June 6, 1940 mlla am W Wa/iizerfird [n ventor Aiiomey Patented Apr. 8, 1941 UNITED STATES PATENT QFFICE CHOKER KNOBWilliam W. Weatherford, Arlington, Oreg. Application June 6, 1940,Serial No. 339,180

2 Claims.

This invention relates to a choker knob, the general object of theinvention being to provide improved means for connecting the knob to acable so that there is no danger of the cable pulling from the knob.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts to behereinafter fully described, illustrated in the accompanying drawing andspecifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawing wherein like characters denote like orcorresponding parts throughout the several views, and in which Figure 1is a view showing how the knob is used to hold a cable in a choker hook.

Figure 2 is a top plan view of the knob.

Figure 3 is a section on the line 33 of Figure 2.

Figure 4 is a view of the wedge member in the knob.

As shown in these views the knob includes a tubular member I and a wedgemember W, the passage I through the tubular member tapers in diameterdownwardly from its top to its lower end and the walls of the passage atan intermediate point is formed with an annular and rounded rib 2 andimmediately under the rib with an annular rounded groove 3. At the lowerpart the passage is formed with a large rounded rib 4 which greatlyreduces the end portion of the passage and this rib forms a flaringextremity 5 for the bottom end of the passage.

The wedge member is of substantially bulletshaped form and graduallydecreases in diameter from its top to its lower end, said lower endforming a point 6 and an intermediate part of the member W is formedwith the annular grooves I with rounded rib 8 between them.

The cable C has its strands separated at one end and passed upwardlythrough the passage of the tubular member l with such strands entirelycover ng the walls oi the passage and the member W is placed in thepassage and against the nner circumference of the strands. with thepoint it terminating opposite intermediate portions of the large rib 4.The grooves and ribs. of the ubular member I and the member W willfirmly lock the strands of the cable in position in the device. as shownin Figure 3 so that it is pract cally impossible for the cable to bepulled from the device, after the wedge member has been put in place,the large rib 4 also acting to distort the strands to further increasethe wedging action and by providing a flaring lower end 5 the cable canmove to a limited extent sidewise where it leaves the device.

This device can be used wherever it is desired to form a knob on thecable and Figure 1 shows one use of the device where the knob is usedfor holding a cable C in a choker hook H having a lateral passage in itstop through which the cable part C passes.

It is thought from the foregoing description that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts provided thatsuch changes fall within the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. A knob for a cable end comprising a tubular part having a taperedpassage therein, intermediate portions of the wall of the passage beingformed with an annular groove and an annular rib, said rib and groovebeing located adjacent each other and a wedge member for fitting in aportion of the passage and wedging strands of a cable between itself andthe tubular member, said wedge member having on intermediate portions ofits walls annular grooves and ribs for cooperating with the rib andgroove in the walls of the passage for distorting the strands of thecable and firmly grip the cable in the knob.

2. A knob for a cable end comprising a tubular part having a taperedpassage therein, intermediate portions of the wall of the passage beingformed with an annular groove and an annular rib, said rib and groovebeing placed adjacent each other and a wedge member for fitting in aportion of the passage and wedging strands of a cable between itself andthe tubular member, said wedge member having on intermediate portions ofits walls annular grooves and ribs for cooperating with the rib andgroove in the walls of the passage for distorting the strands of thecable

